diff options
Diffstat (limited to 'llvm/lib/Analysis/ScalarEvolutionExpander.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ScalarEvolutionExpander.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolutionExpander.cpp b/llvm/lib/Analysis/ScalarEvolutionExpander.cpp index d083037..4db3c7f 100644 --- a/llvm/lib/Analysis/ScalarEvolutionExpander.cpp +++ b/llvm/lib/Analysis/ScalarEvolutionExpander.cpp @@ -1820,6 +1820,7 @@ unsigned SCEVExpander::replaceCongruentIVs(Loop *L, const DominatorTree *DT, IsomorphicInc->getType()); if (OrigInc != IsomorphicInc && TruncExpr == SE.getSCEV(IsomorphicInc) + && SE.LI.replacementPreservesLCSSAForm(IsomorphicInc, OrigInc) && ((isa<PHINode>(OrigInc) && isa<PHINode>(IsomorphicInc)) || hoistIVInc(OrigInc, IsomorphicInc))) { DEBUG_WITH_TYPE(DebugType, dbgs() |